content: /**
   * Copyright (c) 2016-present, RxJava Contributors.
   *
   * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in
   * compliance with the License. You may obtain a copy of the License at
   *
   * http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software distributed under the License is
   * distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See
   * the License for the specific language governing permissions and limitations under the License.
   */
  
  package io.reactivex.flowable.internal.operators;
  
  import static org.junit.Assert.*;
  
  import java.util.*;
  import java.util.concurrent.atomic.AtomicBoolean;
  
  import org.junit.*;
  
  import io.reactivex.common.functions.*;
  import io.reactivex.flowable.Flowable;
  import io.reactivex.flowable.subscribers.DefaultSubscriber;
  
  public class FlowableDoOnRequestTest {
  
      @Test
      public void testUnsubscribeHappensAgainstParent() {
          final AtomicBoolean unsubscribed = new AtomicBoolean(false);
          Flowable.just(1).concatWith(Flowable.<Integer>never())
          //
                  .doOnCancel(new Action() {
                      @Override
                      public void run() {
                          unsubscribed.set(true);
                      }
                  })
                  //
                  .doOnRequest(new LongConsumer() {
                      @Override
                      public void accept(long n) {
                          // do nothing
                      }
                  })
                  //
                  .subscribe().dispose();
          assertTrue(unsubscribed.get());
      }
  
      @Test
      public void testDoRequest() {
          final List<Long> requests = new ArrayList<Long>();
          Flowable.range(1, 5)
          //
                  .doOnRequest(new LongConsumer() {
                      @Override
                      public void accept(long n) {
                          requests.add(n);
                      }
                  })
                  //
                  .subscribe(new DefaultSubscriber<Integer>() {
  
                      @Override
                      public void onStart() {
                          request(3);
                      }
  
                      @Override
                      public void onComplete() {
  
                      }
  
                      @Override
                      public void onError(Throwable e) {
  
                      }
  
                      @Override
                      public void onNext(Integer t) {
                          request(t);
                      }
                  });
          assertEquals(Arrays.asList(3L,1L,2L,3L,4L,5L), requests);
      }
  
      @Test
      @Ignore("This is a 1.x architecture-specific test")
      public void dontRequestIfDownstreamRequestsLate() {
  //        final List<Long> requested = new ArrayList<Long>();
  //
  //        Consumer<Long> empty = Functions.emptyConsumer();
  //
  //        final AtomicReference<Producer> producer = new AtomicReference<Producer>();
  //
  //        Observable.create(new OnSubscribe<Integer>() {
  //            @Override
  //            public void call(Subscriber<? super Integer> t) {
  //                t.setProducer(new Producer() {
  //                    @Override
  //                    public void request(long n) {
  //                        requested.add(n);
  //                    }
  //                });
  //            }
  //        }).doOnRequest(empty).subscribe(new RelaxedSubscriber<Object>() {
  //            @Override
  //            public void onNext(Object t) {
  //
  //            }
  //
  //            @Override
  //            public void onError(Throwable e) {
  //
  //            }
  //
  //            @Override
  //            public void onComplete() {
  //
  //            }
  //
  //            @Override
  //            public void setProducer(Producer p) {
  //                producer.set(p);
  //            }
  //        });
  //
  //        producer.get().request(1);
  //
  //        int s = requested.size();
  //        if (s == 1) {
  //            // this allows for an implementation that itself doesn't request
  //            Assert.assertEquals(Arrays.asList(1L), requested);
  //        } else {
  //            Assert.assertEquals(Arrays.asList(0L, 1L), requested);
  //        }
      }
  }
  